[llvm-bugs] [Bug 25170] New: PowerPC crash in PPCLoopPreIncPrep::runOnLoop()

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https://llvm.org/bugs/show_bug.cgi?id=25170

            Bug ID: 25170
           Summary: PowerPC crash in PPCLoopPreIncPrep::runOnLoop()
           Product: new-bugs
           Version: 3.7
          Hardware: Other
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: eric.schweitz at pgroup.com
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

Created attachment 15069
  --> https://llvm.org/bugs/attachment.cgi?id=15069&action=edit
bugpoint reduced.ll

PowerPC target backend asserts in the PPCLoopPreIncPrep code.

*** You can reproduce the problem with: opt reduced.ll -tbaa -scoped-noalias
-basicaa -simplifycfg -sroa -early-cse -lower-expect -tbaa -scoped-noalias
-basicaa -ipsccp -globalopt -deadargelim -instcombine -simplifycfg -prune-eh
-inline -functionattrs -sroa -early-cse -jump-threading -correlated-propagation
-simplifycfg -instcombine -tailcallelim -simplifycfg -reassociate -loop-rotate
-licm -loop-unswitch -instcombine -indvars -loop-idiom -loop-deletion
-loop-unroll -mldst-motion -gvn -memcpyopt -sccp -bdce -instcombine
-jump-threading -correlated-propagation -dse -licm -adce -simplifycfg
-instcombine -barrier -float2int -loop-rotate -loop-vectorize -instcombine
-simplifycfg -instcombine -loop-unroll -instcombine -licm
-alignment-from-assumptions -strip-dead-prototypes -elim-avail-extern
-globaldce -constmerge

The bug-case is attached.

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